Machine for shaping metal strips for ornamental metal lattice or fence work



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N. PETERS, Pholn-tnliogmpner, wnmngxow D. C.

F. H. KINDL. MACHINE PoR SHAPING 'MBTALSTRIPS PoR ORNAMENTAL METAL LATTICE 0E FENCE WORK.

(No Modeml 3 Sheets-Sheet. 2..

nted'Apr. 23, 1.889. A

E. E. KINDL.

STRIPS FDR URNAMENTAL METAL" FENGEPW MACHINE E ESHAPING METAL LATTICE 0E ,-NofllOZ 08 (No Model.)

3 sheets-sheet' 3.

P. H. KINDL.. PING METAL STRIPS TOR ORNAMBNTAL METAL LATT-IGA1 0R TBNGBPW K. x l

nted ADT. 23, 1889.

Poo E.0 M. mm. 1w @.4 M A 0 M0 W N UNITEDv STATES PATENT OFFICE.

FRED H. KINDL, OF CHICAGO, ILLINOIS.

MACHINE FOR SHAPING METAL STRIPS FOR ORNAMENTAL METAL LATTICE 0R FENCE WORK.

SPECIFICATION forming part of Letters Patent No. 402,087, dated April 23, 1889.

' Application filed September, 1888. Serial No. 284,655. (No model.)

To LZZ whom t may concern:

Be it known that I, FRED H. KINDL, a citin zen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful lmprovement in Machines for Shaping Metal Strips for OrnamentalMetal Lattice-Vork, of which the following is a specification.

My invention relates to the production of metal strips adapted for forming ornamental lattice-work and involving at intervals along each strip certain half-twists which 4are alternately made in reverse directions, whereby the flat-strip portions between the points of twist may alternately lie in different planes.

The objects of my invention are to avoid the slow, expensive, and laborious process of hand-twisting and the liability of tearing the metal at the points of twist, and to produce said strips in a rapid, economical, and gener-l Fig. 3 represents a section taken through portions of the rolls A and A on a plane at right angles to their axis of rotation. Fig. 4 is a like view of two punching-rolls- Fig. 5 represents a section on line 5 5, Fig. Fig. 6 represents a section on line 6 6, Fig. 3. Fig. '7 represents a section on line 7 7, Fig. 4. Fig. 8 represents in perspective a portion ofv one of the reversely-twist'ed strips. Fig.` 9 represents a portion of one of said reverselytwisted strips on a somewhat larger scale. Fig. 10 represents in perspective a portion of the roll A. Fig. 11 is a face view 0f the porl tion of the roll shown in Fig. 10. Fig. 12 is vided with dies for rolling iiatmetal strips into the form herein illustrated by the strip B, which is understood. to have been shaped by the conjoint action of .the rolling-dies. This said strip is at intervals along' its length bent to provide it with a series of half-twists, which are made alternately in reverse or opposite directions, the twists b in the strip being the reverse of the twists b', with which they alternate. The foregoing arrangement of reverse twists serves to bring the intervening iiat portion of the strip alternately in dii"- ferent planes.

In the specimen strip herein shown the flat portions b2, which alternate with the flat portions b3, are arranged in a plane which is at right angles to the lplane in which the flat portions b3 are arranged. Strips thus shaped may be riveted together to form ornamental lattice-Work, such as shown in Figs. 14 and 15, wherein the strips are riveted together at their iat portions b2, which may occupy vertical planes, while t-he flat portions b3, which are intermediate of such riveted portions, may lie in horizontal planes.

As a construction of dies for rolling flat j metal strips into the shape hereinbefore set forth, each roll is provided with a peripherally-arranged die-face comprising a series of fiat-face portions, a, arranged in a plane that is perpendicular to the axis of the roll, and a series of flat-face portions, a', which are formed on planes at right angles to the plane of the said die-face portions Cain which way the die-face portions a correspond, for example, to the dat-strip portions b3, while the die-face portions c correspond to the flatstrip portions b2 of the finished strip. The die-face portions a are on a plane which intersects the die-face portions a midway of their width, while, on the other hand, each die-face ortion et is on a )lane which intersects the.i 1J

two next adjacent die-face portions ct midway of the width of the latter. At the points of junction between said fiat die-face portions@ and a the die-face is provided with curvedface portions,which are curved alternately inv IOO case the reversely-curved die-tace portions a3 are shaped in conformity to the reverselyf formed twist-s b.

IVhile the rolling-dies herein illustrated are arranged with their-tlatface portions a in a plane perpendicular to the axes of the rolls, and their flat die-face portions a in planes that are at right angles t0 the plane of said die-face portions a, as best illustrated by Figs. 5 and G, it is not strictly necessary that said die-face portions should be arranged at such precise angles relatively to the axes of the rolls, since, for example, the die-faces can be arranged obliquely to the axes of the rolls without destroying the desired arrangement of the die-face portions a and a relatively to each other.

By the foregoing arrangement `l'lat metal strips fed in any suitable way to the rollingdies may be rolled into the ultimately required reversely-twisted form.

In orderto accurately guide the strips and hold them properly subject to the action of the dies, each roll is preferably provided with an annular fiange which is desirably received within a correspondingly shaped annular groove in the opposing roll, as best shown in Figs. 5 and 6, wherein the roll A is provided with a peripheral groove adapted to receive a flange, a4, of the roll A, while the roll A is in like manner provided with a peripheral groove adapted to receive a iiange, a5, of the roll A. These flanges may be either made integral with the rolls or may be formed by circular plates made somewhat larger in diameter than the diameters of the rolls and bolted or otherwise suitably secured to the same. The iianges serve, as aforesaid, to guide the strips while the latter are passing between the dies of the two rolls, while by extending the iiange of each roll into an annular recess of the opposing roll the two rolls are so interlocked as to co-operate in resisting any tendency on the part of the work to cause an end-thrust of either roll during the operation of rolling the twists in the metal strips.

In Figs. 1 and 2 the rollsA and A are journaled in a suitable frame and geared together by means of gearsD and D as a simple means for insuring the synchronous rotation of the rolls and causing the die-face portions of one roll to match the corresponding die-face portions of the other roll. It is, however, understood that any suitable means for insuring the proper relative rotation of rolling-dies may be employed in connection with the said rolls.

In connection with the rolls A and A', I propose in practice to provide some convenient arrangement of stop device-such, for example, as an ordinary clutch used for stopping and starting machinery-whereby the action of the dies upon the strip may be arrested at any desired point along the same, it being obvious that various devices for either automatically cutting off the transmission of power to the rolls or for permitting such arrestment to be performed by manual labor can be provided. A stoppage of the machine (or the rolls, which may be comprehended under such term) will permit strips B to be produced with a suitable length of unbent portion, b4, Fig. IO, at either or both ends, so that, where desired, said ends maybe subsequently bent to form scrolls or the like.

The foregoing explanation of the desirability of stopping the rolls at certain times is herein made as explanatory of the feature herein shown of journaling the axle E of the roll A eccentrically in rotary adjustable bearings e, which can be adjusted so as to lift the roll A from the roll A', whereby the strip can be freely shifted along between or withdrawn from the dies, which at such period will be suitably separated for such purpose.

As a means for connecting the rotary adjustable bearings together, they may be provided with levers e, connected together by any suitable connection-such, for example, as a rod, a2-whereby the adjustment of the bearings may be made synchronous. One of said levers is herein provided with a handle, and may be locked in any way suitable for locking a vibratory le ver-as, for instance, the lever can be locked at a proper point along a slotted segment, e3, by a set-screw, or bolt and nut, or other like device, whereby, when said lever is properly locked, the roll A can be held down to its work.

F and F are punching-rolls having face portions corresponding to the die-face of the rolls A and A. One of the rolls F and F (for example, the roll F) is provided with a series of punches, f, while its companion roll is provided with recesses f', which are to register with the punches. By such arrangement a strip, B, can pass from the rolling-dies of rolls A and A to the punching-rolls, between which latter the rivet-holes h5 can be punched in the strip. The rolls F and F may be geared together and also may be gear-connected with either or both of the rolls A and A. The roll F can also have its axle f2 journaled eccentrically in rotary adjustable bearings f, (one of which is shown in Fig. 1,) corresponding to the rotary adjustable bearings, in which the roll A is eccentrically mounted and for a lile purpose. It is also understood that the rotary adjustable bearings for the roll F may be provided with connected levers, and thatone of said levers f4 can be locked to a segment, f5, or like device, so as to hold the roll F down when so desired.

Thile I prefer to arrange the rolling-dies upon a pair of holders consisting of rolls, and consider such arrangement the best, it will be seen by Fig. I3 that the strip could be formed by a rolling-die arranged upon a roll or rotary holder and acting in conjunction with a sliding die arranged upon a straight reciprocating block or holder. In said figure the roll A2 is understood to be provided with a die-face similar to that of either the die or roll A or the die or roll'A, and that the sliding die-block A3 is provided with a corre- IOO IIO

sponding die-face. The roll A could in such case be rotated so as to roll both ways, or it couldbe rotated continuously in one direction and the die-block reciprocated.

What I claim as my invention is- 1. As a means for rolling iiat metal strips into the hereinbefore-described reverselytwisted strips having two portions which are intermediate ofthe twists alternately in different planes, a pair of dies, each having a series of substantially flat die-,face portions alternately in different planes in correspondence with said portions of the strips that are intermediate of the twists, and a series of curved-face portions intervening between said iiat die-face portions and alternately curved in reverse directions in correspondence with and to form the reverse twists in the strips, substantially as set forth.

2. In a machine for forming the within-described reversely-twisted metal strips, a pair of opposing rotary dies, each having die-face Y portions a, alternating with die-face portions a', and reversely-curved face portions a2 and a3, alternating with one another and formed at `the points of junction between thedie-faces a and a ,substantially as described.

3. In a machine for forming the Within-described reversely-twisted metal strips, the iianged dies, each provided with a die-face comprising the portions a, a', a2, and a3, for the purpose described.

4. In a machine for forming the within-described reversely-twisted metal strips, a pair of dies, each provided with a die-face -comprising the alternately arranged piat and curved portions, as set forth, for forming the reversely -tWisted strips B, one of said, dieholders being provided with a ange which works within a groove in the opposing dieholder, for the purpose described.

5. The combination, with the rolls provided with dies, each having the herein-described alternately-arranged iiat and curved die-face portions for forming the reVersely-twisted strips Bof a punching device arranged for punching rivet-holes in said strip, for the purpose described.

6. In a machine for forming strips B, the

roll A, provided with the within-described dieface having the alternately-arranged flat and curved die-face portions, forming Va die-face which is shaped in conformity to said strip, said roll being journaled eccentrically in rotary adjustable bearings, in combination with a separate movable die having alternately-arranged flat and curved die-face portions corresponding to and matching the said die-face portions of the die on roll A, substantially as and for the purpose described.

FRED H. KINDL. Witnesses:

EWELLv A. DICK, W. E. AUGHINBAUGH. 

